Radio de iM@STAR☆（ラジオdeアイマSTAR☆）was an internet radio broadcast channel that featured the personalities Eriko Nakamura, Mayako Nigo, and Akiko Hasegawa. The broadcast period was from October 8, 2009 to March 31, 2011 until the show was terminated and replaced by Radio de iM@CHU!!. In its time, Radio de iM@STAR☆ released several CD albums featuring songs and talk sessions by the unit created for the show.

CHEFFLE was a unit created by and featuring Eriko Nakamura, Mayako Nigo, and Akiko Hasegawa. The name came from the fact that they said they had wanted to be three star chefs, and that they had "shuffled" their personalities around. The trio produced a unit song called J☆U☆M☆P.